

In the short term, I would think so.
In the long run, it makes it less appealing for companies to advertise, because they would have larger costs while having less sales. That, in return, hurts Google as advertisers don’t want to pay as much anymore. If 80% of all users used this extension, advertisers would have to pay more than ever, while having only 20% of all users can be reached (simplified, of course).
Or in short, it’s designed to hurt the system as a whole, not specific companies.
This feels like reverse psychology on a little kid.
“That’s it, I’m not tracking you anymore! >:(”
“Oooh nooo, what have I done! Oh how much I would wish to be tracked :(”
“No, you won’t convince me to change my mind >:(”
“Oh well, guess I’ll have to live without being tracked, what a shame that is.”